Omnitron Systems Technology OmniStar 400 - Manual

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OmniStar ™ 400
AS400/3X 5250 and 5250 Express Star/Repeater
„ Twinax 5250 and 5250 Express compatible star
repeaters that convert twinax daisy-chained cables to a
star twisted pair configuration.
„ Seamlessly connects to standard 5250 and 5250
Express IBM AS/400 and 3X local and remote twinax
controllers and workstations.
„ Supports distances of 5,000 feet on twinax and 3,000
feet on each twisted pair cable for a total distance of
8,000 feet per connection.
„ Cascadable to four units for extra long distances.
„ Retiming repeater technology regenerates and reclocks
data, eliminating clock jitter and noise.
„ Digital Phase Locked Architecture provides acquisition
of data rates of 1 Mbps for 5250 or 2 Mbps for 5250
Express (-2%, +4%), resulting in high immunity to
noise and crosstalk.
„ Twinax or RJ11/45 connectors and polarity controls
provide easy installation and flexibility.
„ Clear display and software independence make
installation and monitoring intuitive and easy.
Omnitron Systems
Technology, Inc.
FEATURES DESCRIPTION
The OmniStar ™ 400 is an IBM 5250 and 5250 Express
compatible star repeater that replaces traditional twinax daisy chains
and provides star configuration on twisted pair wiring. It supports
distances of 3,000 feet on each twisted pair and 5,000 feet on
twinax for a total of 8,000 feet from the host. For cases that require
additional distance, the OmniStar supports cascading of up to 4 stars.
The host connects to the OmniStar via twinax or twisted pair RJ11/45
cable. The workstation connects to it via twisted pair RJ11/45
cable. Both the host and workstation ports support polarity
configuration, which facilitates the usage of different balun types.
The OmniStar diagnostics detect and display true port activity and
parity errors. Each port is monitored for valid frame header patterns
which are displayed via green Activity LEDs. The data is analyzed
for errors; a detected error is displayed via a red Parity Error LED. These
features assist in installation and monitoring of the OmniStar operation.
In contrast to passive and active stars which are susceptible to device
data rate variations, noise and crosstalk, the OmniStar's Digital Phase
Locking Architecture (PLA) provides data acquisition with data
rate variations of -2% to +4% while providing superior noise and
crosstalk immunity. Additionally, in a traditional star, shorted or
unterminated cables can cause a port failure. By contrast the PLA
isolates the failures so they do not affect operation.
Omnitron Systems Technology, Inc. • 140 Technology Dr., Suite 500 • Irvine, CA 92618 • 949.250.6510 tel. • 949.250.6514 fax • www.omnitron-systems.com